3min chapter

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12 Potent Tips To Increase Your Energy, How To Time Your Vitamins & Supplements, Can Testosterone Be Too High & Much More.

Ben Greenfield Life

CHAPTER

The Effects of Vitamin D on Sleep

Study: Vitamin D mediates effect of sunlight on biological rhythms. Sun plays a major role in regulating the circadian rhythm. People who are night shift workers, have really abnormal sleep schedules because they don't have a properly entrained circadian rhythm.

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